KNOW AND TELL: Dog takes over as tiger cubs' nanny

The Cincinnati Zoo has called again on a canine to play the role of nanny for other animals' babies.

CINCINNATI - The Cincinnati Zoo has called again on a canine to play the role of nanny for other animals' babies.

The latest assignment for Blakely the Australian shepherd is to be a companion for three Malayan tiger cubs. Their mother's maternal instincts didn't kick in after their Feb. 3 birth, and zoo staffers have been caring for them.